By default, you see the Approval Status as below

  • Pending Approval
  • Approved
  • Rejected
  • Awaiting Correction

You can Deactivate or Delete any of the Approval Statuses in your org

  • Log in to Salesforce as Administrator
  • Click on Setup and go to Object Manager
  • Search for TT Detail from the object list, and click it
  • Click the "Fields and Relationship"  from the details menu list and click on Approval Status from the fields list
  • Go to the Values section in the Approval Status screen,
  • Click the Deactivate button for the Status that you want to remove from the Approval Status, or click the Del button to delete a specific Approval Status from the list.